Active Feedback Technology (AFT) automatically shuts down the tool if there is a sudden drop in rotation speed (e.g. kick-back). Brushless (BL) DC motor with high power to weight and size ratio generates less heat buildup and is ideal for heavy-duty applications. LED job light illuminates cutting area. Items included: Tool only. Batteries and charger sold separately. 9" abrasive wheel, coupling sleeve, hose assembly, wrench 13-16, hex wrench 4.